Combined auger-head and reamer.



No. 879,075. v PATENTED FEB. 11, 1908.

v E. J. WHEELER.

COMBINED AUGER HEAD AND REAMEE.

I PPLICATIOH FILED SEPT. 5, 1907.

v I M ATTORNEYS EUGENE .T. WHEELER, OF BRYSON CITY, NORTH CAROLINA.

COMBINED AUGER-HEAD ANI) REAMER.

Specification of Letters Patent.

Patented Feb. 11, 1908.

Application filed September 5, 1907. Serial No. 391.504.

To all whom it may concern:

Be it known that I, EUGENE J. WHEELER, a citizen of the United States, and a resident of Bryson City, in the county of Swain and. State of North (Jarolina, have invented a new and Improved Combined. Auger-Head and Reamer, of which the following is a full, clear, and exact description.

This invention relates to a combined tool adapted to bore a much larger hole in wood I parts, namely, the augerhead 1, a hollow arrel 2, the chip removing worm 3 and the reamer 4. The augerhead 1 is hollow and cylindrical and provided at its ends with the usual cutting surfaces 5 and chip inlet openings 6, whereby the chips formed by the cutting edges 5 may pass into the interior of the head. To convey these chips away from the point at which the work is being done, I provide a worm or screw conveyer operating within the head and rotating in the opposite direction from that of the head by means of any suitable mechanism not shown. The

barrel 2 is screw-threaded into the outer end of the augerhead 1 so as to leave a smooth interior passage for the chips, while the reamer 4 is screw-threaded to the outer surface of the augerhead, and having its cylindrical surface 7 flush with the outer. surface of the augerhead. The reamer is provided with an outwardly diverging wall 8 having one or more openings 9 therethrough, each adjacent a cutting edge 10, while the outer edge of the diverging wall 8 is provided with a cylindrical guiding portion 11. It is evident that any number of reamers of varying sizes may be provided for one augerhead and used interchangeably therewith.

In the operation of the device, a reamer is employed having an outer diameter equal to the diameter of the hole which it is desired to produce. The augerhead forms an opening considerably smaller than that desired to be .produced, and the chips formed by the cutting edges 5 are conveyed out through the barrel by the worm 3. When the small opening has attained a depth equal to the length of the augerhead, the reamer contacts with the wood or other material being operated upon and the chips formed by the cutting edges 10 are delivered outside of the barrel 2. By the employment of the improved device above described it is possible to bore a very large hole at one operation, thus saving a second handling.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In combination, a hollow auger head having a cylindrical body portion and having a cutting edge and openings into the interior thereof and at one end thereof, whereby the material removed by said cuttin edge passes to the interior of said head, sai auger head having the end thereof opposite to said cutting edge of reduced diameter and exteriorly and interiorly threaded, a reamer having a cylindrical portion threaded to said reduced portion of the auger head and with its outer surface flush with the outer surface of said head, said reamer presenting a cutting edge extending outwardly from said surface, a barrel threaded into the outer end of said head. and having the interior surface thereof flush with the interior surface of said head, and a worm extending through said barrel and terminating in said head. adjacent said cutting edge and rotatable independently of said head.

2. In combination, a hollow auger head having a cylindrical body portion and having a cutting edge and openings into the interior thereof and at one. end thereof, whereby the material removed by said cutting edge passes to the interior of said head, said auger head having the end thereof opposite to said cut ting edge of reduced diameter and exteriorly and interiorly threaded, a reamer having a cylindrical portion threaded to said reduced portion of the auger head and with its outer surface flush With the outer surface of said name to this specification in the presence of head, said reamer presenting a cutting edge two subscribing Witnesses. eXtendin outwardly from said surface, and. T a barrel threaded into the outer end of said EUGENE HEELER' 5 head and having the interior surface thereof Witnesses:

flush With the interior surface of said head. R. L. DAVIs,

In testimony whereof I have signed my GEO. B. WHEELER. 

